import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet("/status")
public class StatusServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.setStatus(404);
        // 但是这里不设置 body！浏览器会自动返回一个404
        // 下面是自己写的404页面
        resp.setContentType("text/html; charset=utf8");
        resp.getWriter().write("<h1>404 没找到</h1>");
    }
}
